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Run results for:
Object property: delete vs undefined 2
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<iframe src="https://measurethat.net/Embed?id=575299" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Browser:
Chrome 131
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Delete
6406506.0 Ops/sec
Set undefined
118050408.0 Ops/sec
Tests:
Delete
const obj = { a:1, b:2, c:3 }; delete obj.b;
Set undefined
const obj = { a:1, b:2, c:3 }; obj.b = undefined;